Affiliation: | 1. Department of Cardiology, The First Hospital of Xi''an Jiaotong University, Xi''an, Shannxi, 710061, PR China;2. School of Primary Health Care, Faculty of Medicine, Nursing and Health Sciences, Monash University, Victoria 3165, Australia;3. Department of Cardiology, Beijing Anzhen Hospital Affiliated to Capital Medical University, Beijing 100029, PR China |